Spring-motor.



H. B. McNULTY.

SPRING MOTOR.

APPLICATION HLED 1AN.28.19|6.

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'Patentd Apr. 3

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H. B. MNU'LTY.

SPRING MOTOR.

APPLICATION mm mus. ms.

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p w I I M S m 6 t a P wmvessss l5 nrromver UNITED STATES PATENT OFFICE.-

HARRY B. MUNULTY, OF NEW YORK, N. Y., ASSIGNOR TO WONDER TALKING MACHINE COMPANY INC., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

SPRING-MOTOR.

Specification of Letters Patent.

Patented 3, 1917.

Application filed January 28, 1916. Serial No; 74,785.

To all whom it may concern:

Be it known that I, HARRY B. MGNULTY, a citizen of the United States, and a resident of the city, county, and State of New York, have invented certain new and useful Improvements in Spring-Motors, of which the following is a specification.

Some of the objects of this invention, are

to provide a spring motor of simple compact and durable construction having two actuat-' ing springs; to provide an improved spring motor particularly adapted for use in ro-- tating the record support of a talking ma-J chine; and to provide other improvements as 1 against the central portion ofthe upper surwill appear hereinafter;

In the accompanying drawings, Eigure'l is a side elevation of a spring motor con-: structed in accordance with th1s invention; Fig. 2 a top plan view of the same; and Fig, 3 a fragmentary transverse section of the same taken on line 33 of Fig. 1.'

Referring to the drawings, one ment of this invention comprises .a spring motor including two substantially parallel and horizontal supporting plates 10 and 11,

of mild steel or wrought iron which are held in fixed relationship by a plurality of sub stantially vertical spacing rods or'bo1ts12,

the lower ends of which are reduced in dia meter and extend through and are riveted securely to the lower supporting plate and the upper ends of which are reduced in diameter and threaded and project"loosely through suitable apertures provided there s jects loosely'throughan aperture 26 provided in the partition 17, and projects snugly but rotatably through an aperture provided therefor in the upper plate 10. The lower end of this spindle 25 projects snugly but rotatably through the lower plate 11 and is rotatably held against downward movement by any suitable bearing 28 secured to the under side of the lower plate 11. The

embodispindle 25 is held against upward movement by opposed lugs 29 struck up from the spindle and slidably engaging against the under surface of the upper plate 10.

For rotating the spindle 25 a vertical cylindrical shaft 35 abuts at its upper end against the under surface of the upper plate 10 and is rigidly secured thereto by a screw 36 extending loosely through the upper plate and threaded into the upper end of the shaft. This shaft projects downwardly through a recess 36 provided in one edge of the lower plate 11 and the lower end of the shaft 35 is spaced below the lower plate and abuts face of a rigid yoke or stirrup 38jmade of mildsteel or wrought iron and the opposite ends ofwhich extend upwardly as at 39 and are then bent inwardly forming flanges 40 which-aresecurely riveted to the under surfa'ce'of the lower plate 11 thus holding the yoke 38'fixedly in position. A screw 41 extends snuglyi'through the yoke 38 and is threaded into the lower end of the shaft 35 thus holding the lower end of the shaft in a fixed position; I I

' Spaced above the sleeve 45 and loosely surrounding the stationary shaft 35 is a windinggear 46, beneathwhich and loosely surrounding thesleeve45 is a downwardly facing cylindrical spring barrel 47 which rests loosely upon the upper end of the sleeve'4;5 and which supports the winding gear 46 and is rigidly secured thereto by rivets 48 or'other means. This spring barrel contains a spiralspring 51 one end of which is detachably secured to the spring barrel as at 52, and the other end of which is detachably secured to the sleeve as at 53. The lower end of the spring barrel 5O rests loosely upon and is covered by a main driving gear 55 which loosely surrounds thesleeve 45.

Beneath the main driving gear 55 and loosely surrounding the sleeve 45 is a spacing collar 56, the upper end of which abuts against the lower surface of the main driving gear, and the lower end of which abuts against the upper surface of a downwardly facing cylindrical spring barrel which loosely surrounds the sleeve i5 between the lower plate 11 and the yoke 38. Rivets or bolts 61 extend through the main driving gear 55, the collar 56 and the lower spring barrel 60 and connect these parts rigidly together. The lower spring barrel 60 contains a spiral spring 65 one end of which is detachably secured to thespring barrel as at 66 and the other end of which is detachably secured to the sleeve 45 as at 67. The lower end of the lower spring barrel 60 is closed by a cover 68 rigidly secured thereto and loosely surrounding the sleeve 45. The lower surface of the cover 68 and the lower end of the sleeve 45 rests rotatably upon and are supported by a washer 69 which loosely surrounds the shaft 85 and which is preferably made of brass or fiber or some other antifriction material.

For transmitting motion from the main driving gear 55 to the spindle 25, the main driving gear 55 engages a pinion 70 fixedly secured upon a vertical c'ountershaft 71 which is rotatably supported at its ends in suitable bearings 72 and 73 provided therefor in the upper and lower plates 10 and 11 respectively, whereby it is held against longitudinal movement and is arranged to rotate about a fixed vertical axis coincident with its longitudinal axis. An intermediate gear 74 surrounds and is rigidly secured to this countershaft and engages a pinion 75 surrounding and rigidly secured to the spindle 25.

For controlling the speed of the motor, a vertical governor spindle projects at its lower end snugly but rotatably through the lower plate 11, and is held against downward movement by a bearing 81 secured to the under side of the lower plate. The upper end of the governor spindle projects snugly but rotatably through a bearing 82 extending through and carried by the upper plate 10. Surrounding and slidable longitudinally of the governor spindle 80 is a friction disk 85 to which is connected one end of each of a plurality of springs 86 the other. ends of which are fixedly secured to the governor spindle 80, and secured to the central portion of each spring is a fly ball 87. Arranged above the friction disk 85 to coiiperate therewith in a well known manner is a friction shoe or pad 88 carried by one end of a bell crank lever 89 which is pivotally connected as at 90 to one of the rods or posts 12. A pinion 91 fixed upon the governor spindle 80 is engaged and rotated by a gear 92 fixed upon the turntable spindle 25. The lever 89 is arranged to be adjusted about its pivot in any well known or suitable manner to vary the speed of the motor, and for any given adjustment of the lever 89 the motor is controlled to rotate at a corresponding substantially fixed rate.

For winding the springs 51 and 65 in the spring barrels, a pinion 95 engages the winding gear 46 and is rigidly secured to one end of a winding shaft 96 which is rotatably supported and held against longitudinal movement in spaced bearings 97,

which depend from and are preferably integral with the top plate 10. A spiral spring 98 snugly surrounds the winding shaft and is secured at one end to the top plate 10, the arrangement being such .that the spring 98 does not oppose the rotation of the winding shaft in a clockwise direction to wind the springs in the spring barrels, but prevents the rotation of the winding shaft in an opposite direction. The outer end of the winding shaft'is threaded as at 99 to receive a winding crank.

In the operation of this improved motor, when the winding shaft is rotated in a clockwise direction, the pinion 95 will rotate the winding gear 46 and upper spring barrel 4:7 in a clockwise direction, thus winding the upper spring 51 and at the same time rotating the sleeve 45 in a clockwise direction to wind the lower spring 65. The winding of the springs 51 and 65 may be accomplished either while the driving gear 55 is in opera tion rotating at a rate limited by the governor, or while it is held against rotation, as for instance, in a well known manner, by a brake (not shown). The springs 51 and 65 having been thus wound, act to rotate the driving gear 55 in a clockwise direction, as viewed from above, when released by the brake, and the motion is transmitted from the driving gear 55 to rotate the spindle 25 in a clockwise direction and at a predetermined rate controlled by the governor as hereinbefore described.

Although only a single form has been shown in which this invention may be embodied, it is to be understood that the inven tion is not limited to any specific construc tion, but might be embodied in various forms without departing from the spirit of theinvention or the scope of the appended claims.

Having thus fully described this invention, I claim: 7

1. In a spring motor, the combination with two substantially parallel plates, of a rotary-spindle carried thereby, and means for rotating said spindle including a shaft carried by and substantially perpendicular to said plates and extending upon opposite sides of the plane of one of said plates, a pair of spring barrels surrounding said shaftupon opposite sides of said plate respectively, a driving spring in each of said barrels and a winding gear and a main driving gear surrounding said shaft between said plates.

2. In a spring motor, the combination with two substantially parallel plates, of a rotary spindle carried thereby, and means for rotating said spindle including a stationary shaft carried by and substantially perpendicular to said plates and extending upon opposite sides of the plane of one of said plates, a pair of spring barrels surrounding said shaft upon opposite sides of said plate respectively, a driving spring in each of said barrels, and a winding gear and a main driving gear surrounding said shaft between said plates.

3. In a spring motor, the combination with two substantially parallel plates, of a rotary spindle carried by said plates, and means for rotating said spindle including a stationary shaft substantially perpendicular to said plates and secured to and projecting from one of said plates toward and through the plane of the other of said plates, a sleeve loosely surrounding said shaft, a winding gear loosely surrounding said shaft between said plates, a. spring barrel secured to said winding gear and loosely surrounding said sleeve between said plates, a spring connecting said spring barrel and said sleeve, a spring barrel loosely surrounding said sleeve outside of said plate, a spring connecting said second mentioned spring barrel and said sleeve, a driving gear arranged between said spring barrels and secured to said second mentioned spring barrel, transmission means between said driving gear and said spindle, and located between said plates, and means engaging the outer end of said shaft for holding the same in position.

4. In a spring motor, the combination with a substantially vertical fixed shaft, of a sleeve loosely surrounding said shaft, a downwardly opening spring barrel loosely surrounding said shaft, a winding gear superimposed upon and secured to said barrel and loosely surrounding said shaft, a spring in said barrel and operatively connecting said barrel to said sleeve, a driving gear beneath and rotatable with respect to said barrel and loosely surrounding said sleeve, a spring barrel below and secured to said driving gear and loosely surrounding said sleeve, a spring in said last mentioned barrel operatively connecting the same to said sleeve, and means arranged beneath said last mentioned barrel to support the same and said sleeve.

5. In a spring motor, the combination with a substantially vertical fixed shaft, of a sleeve loosely surrounding said shaft, a downwardly opening spring barrel loosely surrounding said shaft at a point above said sleeve, a winding gear superimposed upon and secured to said barrel, and loosely surrounding said shaft, a spring in said barrel and operatively connecting said barrel to said sleeve, a driving gear beneath and rotatable with respect to said barrel and loosely surrounding said sleeve, a spring barrel below and secured to said driving gear and loosely surrounding said sleeve, a spring in said last mentioned barrel operatively connecting the same to said sleeve, and antifriction means surrounding said shaft and engaging the lower ends of said sleeve and said last mentioned barrel to support the same.

6. In a spring motor, the combination with a shaft, of a pair of spring barrels coaxial with said shaft, a driving gear between and secured to one of said spring barrels, a winding gear secured to the other of said barrels, a sleeve rotatable with respect to said barrels and surrounding said shaft and extending through said driving gear and into said barrels, and a spring connecting each of said barrels to said sleeve.

Signed at New York in the county of New York and State of New York this fifth day of January A. D. 1916.

HARRY B. MONULTY.

Witnesses:

GEORGE W. CASE, J unn, KARL TAUSIG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatentl, Washington, D. 0. 

